如何将具有相同索引和值的2个数组与php结合起来?

How to combine 2 arrays that have the same index and value with php?(如何将具有相同索引和值的2个数组与php结合起来?)

问题描述

我有 2 个数组，如下所示:

I have 2 array like follows:

$array1 = [
 '0' => [
   'no_invoice' => 'INV0001',
   'product_code' => '1111111',
  ], 
 '1' => [
  'no_invoice' => 'INV0001',
  'product_code' => '1111112',
 ]
];

  $array2 = [
    '0' => [
      'product_code' => '1111112',
      'free_valie' => 839,
      'count' => 1240
    ],
  ];

是否可以将上面的数组组合成这样:

Is it possible to combine arrays above to be like this:

Array(
 [0] => Array
  (
    'no_invoice' => 'INV0001',
    'product_code' => '1111111',
  )
 [1] => Array
  (
    'no_invoice' => 'INV0001',
    'product_code' => '1111112',
    'free_valie' => 839,
    'count' => 1240
  )
)

所以，如果数组有相同的产品代码，那么它将像上面的例子一样加入.

So, if array have same product code, then it will join like the example above.

我已经尝试过使用数组合并，array_merge($array1, $array2);但是结果是这样的:

I have been tried with use array merge, array_merge($array1, $array2); But the result is like this:

Array(
 [0] => Array
  (
    'no_invoice' => 'INV0001',
    'product_code' => '1111111',
  )
 [1] => Array
  (
    'no_invoice' => 'INV0001',
    'product_code' => '1111112',
  )
 [2] => Array
  (
    'product_code' => '1111112',
    'free_valie' => 839,
    'count' => 1240
  )
)

推荐答案

这段代码会做你想做的事.它使用 <遍历 $array1 中的每个值code>array_search 查看条目的 product_code 是否也存在于 $array2 中(通过查看 product_code使用 array_column<提取的 $array2 列/代码>).如果是，则合并这些值.请注意，我们在 foreach 中使用 &$val，导致值通过引用传递，从而允许在循环中对其进行修改

foreach ($array1 as &$val) {
    if (($k = array_search($val['product_code'], array_column($array2, 'product_code'))) !== false) {
        $val = array_merge($val, $array2[$k]);
    }
}

print_r($array1);

Array
(
    [0] => Array
        (
            [no_invoice] => INV0001
            [product_code] => 1111111
        )

    [1] => Array
        (
            [no_invoice] => INV0001
            [product_code] => 1111112
            [free_valie] => 839
            [count] => 1240
        )

)